E Fixt2
Wall & Floor fixtures, switches, receptacles; symbol only. Shows in Electrical Plan.
E Fixt3
Wall & Floor fixtures, switches, receptacles; modeled, display with symbols. Shows in Electrical Plan, A5 Interior Elevations, View Interior.
E Fixt Clg2
Ceiling fixtures, symbol only. Shows in Electrical Plan, Reflected Ceiling Plan.
E Fixt Clg3
Ceiling fixtures, modeled, display with symbols. Shows in Electrical Plan, Reflected Ceiling Plan, A5 Interior Elevations, View Interior.
E Fixt Ext3
Exterior wall fixtures, modeled, display with symbols. Shows in 1/4" Elevations, Electrical plan.
E Fixt Ext Clg3
Exterior ceiling fixtures, modeled, display with symbols. Shows in 1/4" Elevations, Electrical plan, Reflected Ceiling Plan.
Why do we need six electrical fixture layers? Read on if you're interested.
Once upon a time there was one Electrical Fixture Layer, E Fixture. All the 'fixtures' were 2D symbols, and they all went on this layer.
Issue: Separate the Electrical and Reflected Ceiling Plans. In the RCP, you want to see the ceiling fixtures, but no other fixtures. Put the ceiling fixtures on the new layer E Fixt Clg. The others, sconces, etc., stay on the renamed layer E Fixt. We use 'Fixt' instead of 'Fixture' to save space.
Issue: Some fixtures are modeled, not just symbols. Those fixtures need to show in Interior Elevations and Interior Views (Renderings). The ceiling and non-ceiling fixtures still need to be separated, so we add E Fixt3 for non-ceiling and E Fixt Clg3 for ceiling. We change the old layers to E Fixt2 and E Fixt Clg2 for consistency.
Issue: The modeled fixtures should not show in 1/4" Sections. But we may want to show exterior fixtures in 1/4" Elevations. Since elevations and sections share a layer combination, we need to give the exterior, modeled fixtures two new layers, E Fixt Ext3 (non-ceiling) and E Fixt Ext Clg3 (ceiling).
Summary:
All the E Fixt elements show in the electrical plan.
All the Clg elements also show in the reflected ceiling plan.
The interior modeled fixtures show in the interior elevations and interior views, but not the sections.
The exterior modeled fixtures show in the 1/4" elevations.